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package za.ac.cput.srp.violate.services;

import za.ac.cput.srp.violate.model.DVD;



/**
 *
 * @author Abduraghmaan
 */
public interface Disk {
   int determineSize(DVD dvd);
   boolean available(DVD dvd);    
   double calcSalary(DVD dvd);
   
   
    
      
    
}
